Machine for forming flexible bands across sheets of paper.



No 846,011. PATENTED MAR. 5, 1907.

I R. L. GRAIN. MACHINE FOR FORMING PLEXIBLB'BANDS ACROSS SHEETS OF PAPER.

APPLICATION FILED 0GT.8, 1906.

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Specification of Letters Patent.

Patented. March 5, 1997. l

Application tiled October 8,1906. Serial l lo. 338,032.

To a whom it um r'mumw:

Be it known that l, l'lOLLA L. GRAIN, of the city of Ottawa, in the county. of'Carleton, Province of Ontario, Canada, havoinvented certain new and useful Improvements in Machines for Forming Flexible Bands Across Sheets of Paper, of which the following is a specification.

My invention relates to a machine for treating, sheets of paper to be used in loose-leaf binders for the purpose of rendering an integral portion or band of each sheetmore flexible than the remainder, whereby when the binder is opened the sheet will bend along this band and lie flat against the cover.

The generalobject of the invention is to provide a machine of this character which will operate with great rapidity and will not in any Way Inar the sheets of paper passing therethrough. I I

The specific object of the invention is to provide a machine for quickly and eeonomically carrying out the improved method of treating sheets'of paper for the purpose above specified which I have described in an earlier application and which consists in forming a parallel series, of corrugations across a portion oi the sheet, then reversing the ccrruga tions and flattening the sheet;

In the embodiment illustrated the above operation is carried out by passing; ll sheets through three sets of rollers the first set forming a series of corrugations, the second set reversing the corrugations, and the third set smoothing them out, the detailsof the construction being more fully set forth and described in the accompanying specifications and drawings.

Figure 1 is a top view of my improved machine. Fig. 2 a sideview of the same.

Fig. 3 is a sectional View along the line 2 2,

Fig. i. Fig. 4 is an enlarged sectional detail taken along the line 3, Fig. 2. Fig. 5 is an enlarged sectional detail of the first set of rollers.

In the drawings like letters of reference indicate correspondin g1 parts in each figure.

Referring to the drawings, A. the frame, of any suitable or desirable construction, that shown comprising end members (L and 3), con nected by suitable bars 0.

B, (J, and D are three sets of roller top rollers d, e, and f are fixed in position and have pintles on the ends thereof journeled in suitable bearings g, secured to the, frame. The lower rollers of each pair in, i, and j are l The '1 supported with freedom of movement in vertical direction, the means I have shown to accomplish this result comprising bearing blocks ls, which journal the pintles Z on. each side of the rollers and which are slidably held in slots in in the ends of the frame. These bearing-blocks are intermittently raised and lowered for a purpose to be hereinafterspecitied by means of a series of cams a, secured on the opposite ends of three shafts E, i andG, j-ournaled in suitable bearings secured to the end members of the frame. The connection between these cams and the bearing-blocks may be of any desired character; butl prefer to employ the adjustable means '1 have shown, comprising movable standards 7), having their upper ends externally scrmvdhreaded; rollers 1, having the pintles thereof journaled in the lower end ofthc standard p; a nut 7', partially screwed on the upper end, the upper face of which abuts the under surface of the bcarineybloclt 7c, and a so ond loclonut .9 below the first for locking the some in posi tion. By means of the nut 11; which pro trudes beyond the end of the arm 7), I am able to adjust the length of said arm, and thus adjust the distance the roller shall be moved.

'l he standards are preferably held in position by means of arms I, secured to the framework tln'ougl'i which the standzu'l'ls extend.

'lhe first set of rollers have coi'li p t l' portions of their surface corrugated, as slim. n in Fig. 5, the upper roller having the corrugations u ti-shaped in cross-section and adapted to enter into substantially square-shaped slots r on the lower roller. 'lhose corrugm i tions are only provided around a portion of the surface of each roller and are cut into the roller and do not outwardly protrude thorefrom, whereb if the smooth surface of the rollers were contacting no corrugatlon would be formed on the paper unless the rollers were ll'lOVOtl closer together While the cor rueatod parts of the roller moved past each other it is for this purpose that the lower roller is movably held and adapted to be in tern'iittently moved closer to the upper roller by the cam-opcrated means shown.

' The second set of rollers Chas eorrugations similar to the setB, only reversed in direction, having the corri'lgations v shaped in cross-section provided on the lower roller i.

The first two sets of rpllers are placed such a distance apart that the ordinaryfeeding" o peration of the rollers will move the sheet from under the first position under the second set by the corrugations in the second rollers comemto reversed in direction. V

. The three sets of rollers B, C, and D and the shafts E, F, and G are all rotated from a single source of power, which may be the central shaft F, having a .pulley H thereon, by means of a suitable system of gear-wheels I, the details of which will be familiar to any mechanic. I

J is a feeding-table secured to the frame in front of the rollers a 1 having the top sur face thereof on a leve; with the lower surface mam source of I roller 6 on top thereof supported of the upper rollers. Continuations 9c and y of this table extend between the sets of roll,- ers to support the paper during passage therebetween, I I To feed the paper between the rollers, I provide any suitable form of feeding device K, that shown comprising a large feedingroller 5, rotated by suitable gearing from the power, and a smal feedingon arms 7, which are pivoted to the side members of the frame at 8. As usual in thistype of machine, amechanism L is provided for inter mittently interrupting the feeding to prevent one sheet being As shown, this device consists of a gate-bar 9, supported from levers'lO, secured to a small rocking shaft 12, which is'journaled in brackets 11, secured to the members a and b of the frame. This shaft 12 is rocked by means of a lever 13, secured thereto, the opposite end of which is connected ar 14 to a crank 15, secured to the end of the shaft F. 'lhe levers 10 have projections 16 upwardly extending therefrom, which are connected, by means of link-bars 1 7, to the levers 7 intermediate of the length of the said levers. By this means when the shaft is rocked the gate 9 is lowered simultaneously with the raising of the small feed-roller 6 off the large feed-roller 5.

In the operation of the device'the two rollers of each set are rotated in opposite directions and the cams on the shafts E and F are I 'so 'a "usted that the lower rollers will be move nearer the upper rollers at the same time as the corrugations thereon come opposite-each other. The cam on the third shaft G is adjusted to close togethenand ress the corrugations at the moment when t e ordinary feeding opertion of the rollers will have moved the sheet of paper from a position between the rollers to a corresponding position between the rollers D. 'I hesheets of paper are fed one by I one by means of the feeding devicesK to the set of rollers B, which will feed the paper along and being. moved close together when the colg-ugations are opposite each other will imset to a corresponding time the I per it will now protrude from the fed in ontop of the other. l

feeding to such an i (hum amount of care is necessary to be exerl cised in placing the by a li'nkcause the rollers to move tween the corrugations in the rollers will 0 erate thereon to reverse the corrugations thereinthat is, where a corrugation in the first case protruded from one side of the pa other. In a similar manner the rollers D operate to press all the corrugations out of the paper and smooth the same, leaving it with practi 'cally the same surface that it started with, but having a band thereon rendered more flexible by the stretching of the paper from one side to the other, caused by the impressing of the corrugations, their reversal, and final smoothing.

It will thus be seen that I have devised an exceedingly cheap and simple form of machine for carrying out the process hereinbefore set forth. The capacity of the machine is very great, as the rollers can be rotated at a high rate of speed and the sheets of paper very quickly fed therethrough. The ma chine is practically automatic in its operation from beginning to end, the only manual operation being the placing of the sheets on the feeding-table J, the device L controlling the extent that only a mesheets on the table. It is evident that feeding devices might be employed, and the ICO many different forms of rollers might be intermittently moved closer together by a large number of different mechanisms, the machine dependingfor its operation on the feature of the three sets of rollers operating successively on the sheets of paper. In some cases it may be desirableto leave the paper with the corrugations therein. and in these cases the third set'of rollers D may be omitted.

It will be readil understood that while I have described witfi great particularity of detail one specific embodiment of theinvention yet the inventionis notlimited thereto, as certain changes may be made in the details of construction within the scope of the apl pended claims without departing from the spirit of the invention.

What I claim as my invention is 1. An improved machine for forming flexible ban ds across: sheets of paper consisting of means for producing corrugations on one part only of a sheet of paper combined with means for exactly reversing each individual corrugation whereby the part forming the corrugation onone side will be stretched to form'the corrugation on the opposite side as and for the purpose specified.

2. An improved machine for forming flexi saaou ing means on a part only of their periphery,

whereby the sheets of paper passing through will be corrugated along ccrtain'given portions only, the rollers being so disposed rel ative to each other that the corrugating means on the second roller will exactly reverse each individual corrugation formed by the iii-st pair of rollers as and for the purpose specified.

4.- Ina machine for forming flexible bands across sheets of paper the combination of two pairs oicorrugatingaollers having corrugating means on a part only of their periphery, whereby the sheets of paper passing through will be corrugated along certain given portions only, the rollers being so disposed relative to each other that the corru- 'gating means chithe second roller will exactly reverse each individual corrugation formed by the first pair of rollers, and flatten i g-rollers operating to smooth the paper alter the second corrugating rollcrs have opgraited thereon 'as and for the purpose speci- 5. Ina machine for the purpose specified the combination with the two pairs of corrugating-rollers of which the second pair is adapted to reverse the corrugations formed by the first of means for feeding the paper sheet by sheet to the rollers as and for the purpose specified.

6. In a machine for the purpose specified the combination with two pairsof corrugating-rollers having the corrugations in the s'cc 0nd set reversed to those of the first, oi means for moving the rollers of each set closer together during certain parts of their revolro tionesand for the purpose specified.

7. In a machine for the purpose specifio'l the oornbinationwith the two sets of corrugating-rollers having the corrugations in each set reversed, .of-slidable blocks secured to -p1ntles on the end or one roller of each set and means for intermittently moving the said bearing-blocks closer to the opposite roller as and, for the purpose specified.

8. In a, machine for the. purpose specified the combinationwith the two sets of corrugating rollers having the corrugations in each set reversed, of slidable blocks secured to pintleson the end of one roller of each set and earn-operated means for intermittently moving the said bearing-blocks closer tothe opposits roller as and for the purpose specified.

9. in a machine for the purpose specified the combination of three sets of rollers and means for successively moving the rollers of each pair closer together as and for-the purpose specified.

10. In a machine for thepurpose specified the combination with three sets of rollers of cam-operating means for successively moving the rollers of eaclrpair closer together as and for the purpose specified.

11. In a machine for the purpose specified the combination with the three sets of rollers of bearing-blocks secured to the lower rollers of each pair, means for slidablysupporting the same, a plurality of cams and connecting means extending between the cams and the bearing-blocks whereby the same are intermittently raised and lowered as and for thev purpose specified.

12. In a machine for the purpose specified the combination with a pair of rollers having a series of grooves formed in a portion of the periphery of one roller and a series of ribs in a portion of the periphery of the other roller adapted to extend into said grooves when the rollers are rotated in opposite directions, of a second pair of rollers. provided with like grooves and ribs but having the rollers therein oppositely placed, and means for rotating the rollers as and for the purpose specified.

13. in a machine for the purpose specified the coi'nbination with a pair of rollers having a series of; grooves formed in a portion of the periphery of one roller and a series of ribs in a portion of the periphery of the other roller adapted to ex tend into said grooves when the rollers are rotated in opposite directions, of a second pair of rollers provided with like grooves and ribs but having the rollers thereinkrppositely placed, means for rotating the rollers, and means for moving the rollers 0i each pair closer togetl'ier during the parts of the revolution when the ribs on one roller are opposite the grooves of the other as and [or the purpose specified.

14. in a machine for the purpose specified the C(JllllllllflllOll ith a pair of rollers having one roller provided with a series of grooves on a portion of the-periphery thereof and the other roller with a series oli'ribs adapted to extend into said grooves when. thorollers are rotated in opposite directions of a second set of rollers having grooves in one roller and ribs in the opposite roller oppositely placed to the first-mentioned rollers, the second set of rollers being placed such a distance apart that the corrugating means will operate to reverse the corrugations formed by the first rollers and means for rotating the rollers as and-for the purpose specified.

15. In a machine for the purpose specified the combination with a of rollers having corrugating means formed on a portion of their peripheries of a second set of rollers having corrugating means also formed on their peripheries but reversed in direction to the corrugating means on the first-mentioned rollers, the second set of rollers being placed such a distance from the first set that the corrugating means will operate to reverse the corrugations formed by the first set of rollers .and means for rotating both sets of rollers as and for the purpose specified. Y

16. An improved machine for the purpose specified having two pairs of corrugatingrollers, the second rollers being adapted'to produce a corrugation reversed in. direction, to the first, the corrugating means of each set of rollers only being thrown into operation when the rollers are moved closer togetheras and for the purpose specified. I

An improved machine for forming flexible bands across sheets of paper consisting of two pairs of rollers having longitudinal corrugating-ribs and rooves formed on portions only of their peripheries whereby a por tion only of the paper passing thcrethroughwill be corrugated and having the same parts of the peripheries contacting and operating to feed the paper'irom the rollers, the two sets of rollers being placed such a distance apart that the second set will exactly reverse the corrugations formed by the first as and for t e purpose specified.

18; In a machine for the purpose specified the combination with the two sets of corru' ga'ting-rollers, the second set being adapted to produce a corrugation reversed in direction to the first, of means for moving the rollers of each set closer to ether during certain portions of their revoIution and means the distance the said rollers are for adjusting moved as and forthe purpose specified.

19, In a machine for the the combination with the two sets of corrugating-rollers having the lower rollers of each set movable, of means for intermittently movingthe lower rollers closer to the upper ones and means for adjusting the distance the said lower rollers are moved as and for the purpose specified. I

20. In a machine for the purpose specified the combination with the two sets ofcorrugating-rollers having one movable roller in 'eachset, of means for intermittently moving the movable rollers closer to" the fixed rollers as and for the purpose specified.

21. In a machine for the purpose specified the combination with the two sets of corrugating rollers having one movable roller in each set, of-me'ans for intermittently mo ing l the movable rollers closer to the fixed rollers I the combination with. the

purpose specified and means for independently adjusting theintermittent movement of the movable rollers as and for the purposesp'ecified.

22. Ina machine for the purpose specifiedthe eombinationivith the twd pairsof cor-ru gating-rollers having one m vable ,rollei in leach pair, of bearing-blocks..jpurnalingtlw movable, rollers, means'for slidably supportingthesame, a standard hav ng an externally-screwethreaded top,

and abutting the bearing-blocks, means for locking saidnut in position, and means for intermittently raisin and lowerin the standard as andfor the urpose-specifi 23. In amachine for t e purpose specified two pairs of corrugating-rollers having one movable roller in each air, of bearing-blocks journaling the mova le rollers, means for slidably supporting the same, a standard having an externa ly-screw-threaded top, said top extending-outwardly therefrom and abutting the bearing-blocks, means for locking said nut in position, a cam, and a roller secured to the bottom of the standardadapted to bear on the cam as and for the purpose specified.

24. An improved machine for forming flexible bands across sheets of paper comprising two pairs of corrugating-rollers, ofwhich the second setis adapted to reverse the corrugations formed by the first, and means for holdin the sheets of paper exac-ly in position wl iile the second pair of rollers are operating on them whereby the corrugations formed by the first set, will be exactlyreversed as and for the purpose specified.

25. An improved machine for forming flexible bands across sheets of paper consisting of means for producing a corrugated band across the sheet of paper in which the corrugation extends, longitudinally of the band,

with means for exactl reversing the will combined each individual corrugation w erebdy art formin the corrugation on one si e be stretched opposite side fied.

1 her, 190Q. I ROLLA L. 01mm.

; Witnesses;

, RUssEL S. SMART, WM. WYMAN.

e amj rew d said top and extendingnutwardly therefrom to form the corrugation on the as and for the purpose speci- Signed at the city of Ottawa, in the Prov-- ince of Ontario, Canada, this 5th day ofOctoa nut screwed on 

